Veolia interview questions

First round phone interview with recruiter, followed by second round Zoom interview with a member of Communications Dept, and finally a third round (finalist stage) interview in the Boston office with multiple stakeholders from HR, recruiting, and Communications. There was very little communication and the process was not very transparent. At the end of every interview round, they said they would be in touch to set up the next round and yet it would be weeks before I would hear back from someone unless I reached out myself. After meeting with at least 6 people from the company over the course of 2 months, I received a form letter notifying me that I had not received the job that didn't even acknowledge the many hours spent interviewing - it was the same email you receive when you just submit an application online and they say you don't fit their needs.